Can you find the hidden elephant in this hidden image stereogram created by 3Dimka? If you are having trouble seeing the hidden image, try reading through the stereogram viewing tips at 3DStereograms.com.

The following photograph was captured by NASA’s Mars Reconnaissance Orbiter.  It is a lava flow in Elysium Planitia on the planet Mars.  Does it resemble anything?  Do you see the head and trunk of an elephant?  While it certainly is not proof of any life on Mars, it is an interesting natural illusion. Image courtesy [...]

Psychologist Roger Shepard, a professor at both Harvard and Stanford, published a book called Mind Sights in 1990.  This book has been  described as “…both stimulating to the eye and provocative to the mind.”  It also happens to feature one of the most famous and classic optical illusions of all time.  While most people know [...]